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A 2.50 kg book is placed on a flat desk. suppose the coefficient of static friction between the book and the desk is 0.448 and the coefficient of kinetic friction is 0.373. how much force is needed to
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33 votes
33 votes
A 2.50 kg book is placed on a flat desk. suppose the coefficient of static friction between the book and the desk is 0.448 and the coefficient of kinetic friction is 0.373. how much force is needed to begin moving the book?

User Mikuso
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1 Answer

23 votes
23 votes

Answer:

11 N

Step-by-step explanation:

You will need enough force to overcome the static friction

Fn = 2.50 kg * 9.81 m/s^2

F of static friction = Fn * coeff static = 2.50 * 9.81 * .448 =~ 11 N

User Igreenfield
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2.9k points
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